I came across this while looking at 125cc pit bikes. It has an Apollo DB-X18/RFZ-style 125cc gas setup for youth and adults, so it may suit someone after a 125cc dirt bike for pit and recreational riding: https://hhhpowersports.com/products/hhh-apollo-db-x18-125cc-rfz-racing-gas-dirtbike-pitbike-for-youth-adults